#ifndef _LED_H
#define _LED_H
#include "stm32f4xx.h"                  // Device header

#define LED_OFF (GPIOA->ODR |= (1<<7))
#define LED_ON  (GPIOA->ODR &= ~(1<<7))
#define LED_OVERTURN   (GPIOA->ODR ^= (1<<7))

void led_init(void);

#endif



